For centuries, people have wondered where Earth’s vast oceans came from. Our planet didn’t form with much water, yet today it ...

While observing the Halley-type comet 12P/Pons-Brooks with ALMA and NASA's Infrared Telescope Facility, researchers ...

Our new results provide the strongest evidence yet that at least some Halley-type comets carried water with the same isotopic ...

A recent study published in Nature Astronomy has delivered the clearest evidence yet that some comets carried Earth-like ...

Comet 12P/Pons Brooks shows a D/H water ratio matching Earth’s oceans, revealed through ALMA and NASA IRTF observations.

The discovery renews the debate about how Earth got its oceans. If comets like 12P/Pons-Brooks carried water to our young ...

Alien hunting Harvard astronomer Avi Loeb continues to rail against the idea that our newest interstellar is merely a comet.

The mysterious object named 3I/ATLAS that came from outside our solar system and is hurtling towards the sun, has once again ...

A massive comet trail may have caused climate upheaval on Earth more than 12,000 years ago, sparking the Younger Dryas.

New research has uncovered compelling evidence that water from a comet is strikingly similar to that found in Earth's oceans, ...

"We should put all possibilities on the table that it's a rock, a comet, or something else until we get the evidence, the ...

In 2024, scientists studying ancient sediments in the eastern United States reported signs of a comet exploding in Earth’s ...